RRB NTPC 2021-06-04-2021-1 RRB Question Paper

RRB NTPC 2021 - Graduate Level and Undergraduate Level Question Papers

RRB NTPC 2021-06-04-2021-1 RRB Questions

1.
In a right circular cylinder, the ratio of the curved surface area to the total surface area is 2 : 5. Find the ratio of the height to the radius of the cylinder.
A.
3 : 4
B.
2 : 5
C.
5 : 3
D.
2 : 3
😑 View Answer Rough Work
ANSWER :
D. 2 : 3
2.
For a frequency distribution, mean, median and mode are connected by the relation:
A.
mean = (3 median — mode) / 2
B.
mean = 2 / (3 median — mode)
C.
mean = (3 median — 2 mode) / 2
D.
mean = (3 median + mode) / 2
😑 View Answer Rough Work
ANSWER :
A. mean = (3 median — mode) / 2
3.
In Oct 2020, NASA named the Cygnus Spacecraft after the astronaut _____.
A.
Sunita Williams
B.
Kalpana Chawla
C.
Ravish Malhotra
D.
Rakesh Sharma
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ANSWER :
B. Kalpana Chawla
4.

Select the Venn diagram that best represents the relationship between the following classes.
Peacock, Sparrow, Bird

A.

C

B.

A

C.

D

D.

B

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ANSWER :

C. D

5.
How many schedules are there in Wildlife Protection Act, 1972 of India?
A.
VII
B.
V
C.
IV
D.
VI
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ANSWER :
D. VI
6.
If A and B are acute angles such that tan A = cot B, then the value of A + B is:
A.
90°
B.
0°
C.
360°
D.
180°
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ANSWER :
A. 90°
7.
If a sum of money doubles itself in 10 years, then the rate of simple interest is:
A.
10%
B.
20.50%
C.
10.50%
D.
20%
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ANSWER :
A. 10%
8.
Which is the award instituted by the Government of India for individuals or communities from rural areas who have shown extraordinary courage and dedication in protecting wildlife?
A.
Sunderlal Bahuguna Award
B.
Sanjay Gandhi Paryavaran Award
C.
Amrita Devi Bishnoi Award
D.
BP Pal Award
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ANSWER :
C. Amrita Devi Bishnoi Award
9.
If a : b = 2 : 5, b : c = 5 : 8, c : d = 8 : 11, then a : d is:
A.
3 : 5
B.
5 : 8
C.
2 : 11
D.
2 : 7
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ANSWER :
C. 2 : 11
10.
Select the number that can replace the question mark (?) in the following series.
3, 6, 5, 12, ?, 24, 11, 48, 13
A.
9
B.
7
C.
6
D.
8
😑 View Answer Rough Work
ANSWER :
B. 7